Cushion structure and manufacture



July 9, 1929. K. KARPEN .CUSHION STRUCTURE `AND MANUFACTURE Filed MaCh 9, 1927 2 Sheets-Sheet l July 9, 1929. K, KARPEN 1,720,480

CUSHION STRUCTURE AND MANUFACTURE Filed March 9. 1927 2 Sheets-Sheet 2 of the structure. This has the effect of producing a re-entrant angle or peripheral V-shape recess 11 between the cushion-units A and A. Considering the cushion-structure as a whole, the V-shape recess presents a central constriction of the periphery of the structure, as appears from Fig. 2.

The edge-strip 8c of the upper casing is `shown provided with vents 12. These may be equipped with inwardly opening valves (not shown), the use-of which is now well understood. After the casing-sections 4 and 8a have beenl united, the upper casing may be completed, except that it may be left open at its-rear end, as indicated by the dotted -lines in Fig. 3. The upper casing may then be shirred upon the spout of a stuiing machine and the stuffingl 9 may be introduced.

- The rear end of the casing may then be sewed up, and the lower casing may then be applied to cover the stuifingof the lower cushion-unit, theskirt-portions being tacked to the baseplate 1.

Both casings preferably consist of suitable finish-fabrics, although, obviously, the portions inside the line of stitchings 10 are not exposed to view.

The improved cushion-structure possesses several advantages. It is highly resilient and extremely luxurious, yet capable 'of regaining its normal form after long-continued use; the upper unit, within reasonable limits, pivots upon the lower uni-t, adding greatly to the resilience and comfort in partially turning or tilting movements; and, moreover, the structure presents the appearance of a loose upper cushion, but obviates the danger of the cushion being thrown about the bus, or stolen.

It may kbe remarked that in the space bounded by the line of stitching 10, a single ply of fabric may be employed in lieu of the double ply afforded by the fabrics 4 and 8". Where the marginal portions of the cushionunits project beyond the line of stitching, it is necessary, of course, that both plies l and 8a be, used.

The foregoing detailed description has been given for clearness of understanding only,

, stufHng theupper casing and closing the open edge thereof; and applying the lower casing, now bearing the upper cushion-unit, over the spring-structure and stuffing material mentioned and securing the skirt-portions of the lower casing to said base-plate.

KING KARPEN. 

